2005_DSC0429

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Spherical sandstone concretions at Red Rock Coulee in southeast Alberta.
Spherical sandstone concretions at Red Rock Coulee in southeast Alberta.
Filename: Sandstone Concretions, Red Rock Coulee
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Keywords:
  • boulder
  • concretion
  • sandstone
  • red
  • rock
  • coulee
  • Alberta
  • Canada
  • geology
  • sphere
  • round
  • spherical
  • clay
  • eroded